Antonyms for the phrase "puts one's foot down" include, but are not limited to, compromise, acquiesce, yield, adapt, and collaborate. These phrases suggest a sense of flexibility and an openness to negotiation, rather than a firm stance. When one is willing to yield and adjust their position, conflicts are more likely to be resolved in a peaceful and amicable manner. However, there may be certain situations where putting one's foot down is necessary, such as when enforcing boundaries or asserting one's rights. Ultimately, the appropriate response depends on the specific circumstances and the individual's personal values and priorities.